CN210528913U - Ecological floating bed photobioreactor - Google Patents
Ecological floating bed photobioreactor Download PDFInfo
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- CN210528913U CN210528913U CN201921391661.6U CN201921391661U CN210528913U CN 210528913 U CN210528913 U CN 210528913U CN 201921391661 U CN201921391661 U CN 201921391661U CN 210528913 U CN210528913 U CN 210528913U
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Abstract
The utility model discloses an ecological bed photobioreactor that floats, the reactor includes the braced frame body, sets up the sponge that absorbs water in the braced frame body and sets up the floater around the braced frame body, and the bottom of braced frame body is provided with the hole of permeating water, is provided with the alga film of pasting on the sponge top surface that absorbs water, and the braced frame body top mouth is provided with the transparent ventilative housing of cover in the sponge top that absorbs water, and the braced frame body bottom is connected with fixed anchor chain, works as ecological bed photobioreactor that floats place when the aquatic, the sponge upper portion that absorbs water exposes on water, the lower part of the sponge that absorbs water is soaked in aqueous. The utility model discloses utilize little algae at the quick growth of nutrient substances such as nitrogen phosphorus in natural water especially eutrophic water to breed, and then gain little algae cultivation, reduce water resource consumption, water purification, reduce little algae cultivation cost's beneficial effect by a wide margin.
Description
Technical Field
The utility model relates to a reactor for microalgae culture and water purification.
Background
Microalgae is a micro organism which is widely distributed in nature, rich in nutrition and can grow by photoautotrophy, and high value-added substances such as protein, grease, polysaccharide, pigment and the like can be produced by the growth of microalgae cells, so that the microalgae has a good development prospect in the fields of food, medicine, biofuel, aquaculture and the like.
In nature, a large amount of microalgae which can be directly collected by people does not exist, and a certain amount of microalgae biomass can be obtained only by adopting the mode of artificial culture and the mode of a photobiological device and the like for condition control. The photobioreactor in a broad sense includes both open raceway ponds and closed photobioreactors. The open raceway pond has low investment and simple structure, but has low microalgae yield and difficultly controlled culture conditions, and is very easy to cause biological pollution due to protozoa, mixed algae and the like brought in by air, pipelines, operation processes and the like, so that the culture process fails. The closed type photobioreactor comprises a plurality of forms such as a flat plate type, a vertical column type, a spiral pipeline type and the like, and the closed type structure better ensures the control of culture conditions and the prevention and control of biological pollution, so that the yield of microalgae of the closed type photobioreactor is relatively high.
However, the culture of the microalgae in the open raceway pond or the closed photobioreactor is premised on the injection of a large amount of exogenous water. The microalgae are subjected to suspension growth in the water body, and when the microalgae are separated from the water and collected in the later stage of the growth stage, the water body in the reactor is replaced, and the microalgae can be cultured in the next round after being inoculated again. Therefore, the cultivation of microalgae in the above-mentioned cultivation method requires a large amount of water resources. Studies have shown that approximately 2000 tons of water are required to produce 1 ton weight of microalgae dry matter. Meanwhile, the process of separating and harvesting the microalgae from the water is a stage with large energy consumption and increased cost, and the energy consumption of the stage is about 1/3 of the total energy consumption of the whole microalgae culture process. In addition, nitrogen and phosphorus nutrient salts remained in the water body after microalgae harvesting are discharged into a natural water body, and the nitrogen and phosphorus concentration burden of the natural water body is increased, so that the microalgae harvesting water body becomes a eutrophic water body and causes a series of ecological environment problems.
In conclusion, the traditional microalgae culture mode of the open raceway pond and the closed photobioreactor has the problems of large water consumption, overhigh harvest yield, easy water eutrophication and the like. Therefore, how to overcome the disadvantages and construct a novel photobioreactor with low water consumption, low recovery cost and environmental friendliness and a use mode thereof becomes a key technology for effectively developing microalgae resources.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides an ecological floating bed photobioreactor which can directly cultivate microalgae on a natural water body.
In order to solve the technical problem, the utility model discloses ecological bed photobioreactor that floats, including the framework of support, set up the sponge that absorbs water in the framework of support and set up the floater all around at the framework of support, the bottom of framework of support is provided with the hole of permeating water, is provided with the alga on the sponge top surface that absorbs water and pastes the wall membrane, and the framework of support apical pore is provided with the transparent ventilative housing of cover in the sponge top that absorbs water, and the framework of support bottom is connected with fixed anchor chain, works as ecological bed photobioreactor that floats place when the aquatic, the sponge upper portion that absorbs water exposes on water, the lower part of the sponge that absorbs water is soaked in aqueous.
The transparent breathable cover comprises an inner cover body and an outer cover body, air holes are densely distributed on the side wall of the outer cover body, air holes are densely distributed on the top wall of the inner cover body, and a gap is reserved between the two cover bodies. The transparent breathable cover can form good breathability, and rainwater cannot fall onto the algae body wall pasting film.
In order to facilitate taking and placing the transparent breathable cover, the outer cover body and the inner cover body are connected into a whole through a supporting piece.
In order to facilitate the underwater fixation, the fixed anchor chain is connected with a counterweight.
In order to fix the water-absorbing sponge body and enable the water-absorbing sponge body to absorb water better, the supporting frame body comprises a frame-shaped surrounding supporting frame and a net-shaped bottom supporting frame, the bottom supporting frame is fixedly connected with the bottom of the surrounding supporting frame, a fixed anchor chain is connected with the middle part of the bottom surface of the bottom supporting frame, and the water-absorbing sponge body is arranged in frame holes of the surrounding supporting frame and pressed on the bottom supporting frame.
In order to facilitate the position of the floating body all around to adjust the degree of depth of intaking of the cavernosum that absorbs water as required, braced frame's top all around install the supporting ring board, transparent ventilative housing cover is on the braced ring board, the floating body all around be the kickboard that density is less than the density of water, set up porosely in the middle of the kickboard, braced frame inserts in the hole of kickboard all around, supports all around and is provided with adjusting device between the kickboard, adjusting device includes supporting shoe and regulation pole, the supporting shoe is fixed on the pore wall of kickboard, adjust the pole and rotate with the supporting shoe and can not reciprocate and be connected, adjust the upper end and the braced ring board threaded connection of pole, the lower extreme of adjusting the pole is less than the.
In order to prevent the transparent gas-permeable cover from translating, the floating plate is higher than the support ring plate.
In order to simplify the structure, the peripheral floating body is a floating plate with the density smaller than that of water, a hole is formed in the middle of the floating plate, a peripheral supporting frame is inserted into the hole of the floating plate, and the peripheral supporting frame is tightly clamped with the floating plate.
The utility model has the advantages that:
1. the utility model discloses ecological bed photobioreactor that floats can float for a long time and be fixed in natural water surface, and little algae of high added value is cultivateed to usable natural water, has solved little algae and has cultivateed the too big problem of water resource consumption in-process, can reduce little algae cultivation cost by a wide margin.
2. The utility model discloses little algae adsorbs on the adherence membrane surface, does not directly get into the water, has solved little algae and has gathered the too big problem of in-process power consumption from the water separation, has reduced little algae breed cost.
3. The utility model relates to an ecological floating bed photobioreactor can place in eutrophic water, breeds through the growth of little algae, absorbs nutrient substance such as nitrogen phosphorus in the eutrophic water, can reduce water eutrophication level, reaches the purpose that the water purifies. The microalgae which can be cultured by the utility model comprises fresh water and salt water microalgae, such as chlorella, haematococcus pluvialis, snow algae, diatom and the like. The utility model discloses utilize little algae at the quick growth of nutrient substances such as nitrogen phosphorus in natural water especially eutrophic water to breed, and then gain little algae cultivation, reduce water resource consumption, water purification, reduce little algae cultivation cost's beneficial effect by a wide margin.
Drawings
FIG. 1 is a schematic view of the external structure of the photobioreactor of the present invention;
FIG. 2 is a schematic longitudinal sectional view of the photobioreactor according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is a top view of FIG. 1;
in the figure: 1. the device comprises a transparent breathable cover 1-1, breathable holes 1-2, an outer cover body 1-3, an inner cover body 2, a peripheral floating body 3, an adjusting device 3-1, an adjusting rod 3-2, a supporting block 4, a supporting frame body 4-1, a bottom supporting frame 4-2, a peripheral supporting frame 4-3, a supporting ring plate 5, a fixed anchor chain 6, a balance weight 7, a water absorbing sponge 8 and an algae body wall pasting film.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The ecological floating bed photobioreactor as shown in fig. 1-4, comprises a supporting frame body 4, a water-absorbing sponge body 7 arranged in the supporting frame body 4 and peripheral floating bodies 2 arranged around the supporting frame body 4, wherein the supporting frame body 4 comprises a frame-shaped peripheral supporting frame 4-2 and a net-shaped bottom supporting frame 4-1, the bottom supporting frame 4-1 is fixedly connected with the bottom of the peripheral supporting frame 4-2, a fixed anchor chain 5 is connected with the middle part of the bottom surface of the bottom supporting frame 4-1, and the water-absorbing sponge body 7 is arranged in frame holes of the peripheral supporting frame 4-2 and pressed on the bottom supporting frame 4-2.
The top surface of the water absorption sponge body 7 is provided with an algae body adherence film 8, the algae body adherence film 8 is made of the existing film-shaped material for culturing microalgae, the top opening of the supporting frame body 4 is provided with a transparent breathable cover 1 covering the water absorption sponge body 7, the transparent breathable cover 1 comprises an inner layer cover body and an outer layer cover body, the side wall of the outer layer cover body 1-2 is densely distributed with breathable holes 1-1, the top wall of the inner layer cover body 1-3 is densely distributed with breathable holes 1-1, and a gap is reserved between the two layer cover bodies. The two cover bodies are preferably connected into a whole by a supporting piece, so that the two cover bodies are convenient to take and place together.
The bottom of the supporting frame body 4 is connected with a fixed anchor chain 5, the lower end of the fixed anchor chain 5 can be connected to a submarine fixture, or a counterweight 6 is directly arranged at the lower end of the fixed anchor chain 5. The lower end of the fixed anchor chain 5 is fixed on the water bottom by the gravity of the balance weight 6.
When the ecological floating bed photobioreactor is placed in water, the upper part of the water-absorbing sponge body is exposed on the water, and the lower part of the water-absorbing sponge body is immersed in the water.
As shown in fig. 2, a supporting ring plate 4-3 is installed on the top of the peripheral supporting frame 4-2, the transparent air-permeable cover 1 covers the supporting ring plate 4-3, and the transparent air-permeable cover 1 is tightly contacted with the supporting ring plate 4-3 to ensure that the transparent air-permeable cover 1 does not translate, and the peripheral floating bodies 2 can be higher than the supporting ring plate 4-3 to limit the transparent air-permeable cover 1 to translate. The peripheral floating body 2 is a floating plate with the density smaller than that of water, a hole is formed in the middle of the floating plate, a peripheral supporting frame 4-2 is inserted into the hole of the floating plate, an adjusting device 3 is arranged between the peripheral supporting frame 4-2 and the floating plate, the adjusting device 3 comprises a supporting block 3-2 and an adjusting rod 3-1, the supporting block 3-2 is fixed on the hole wall of the floating plate 2, the adjusting rod 3-1 and the supporting block 3-2 are connected in a rotating mode and cannot move up and down, the specific connection mode can be a bearing connection mode, or a through hole is formed in the supporting block 3-2, the adjusting rod 3-1 is inserted into the hole in a rotating mode, and limiting clamping blocks are arranged on the upper side and the lower side of the adjusting rod 3-. The upper end of the adjusting rod 3-1 is in threaded connection with the supporting ring plate 4-3, and the lower end of the adjusting rod 3-1 is lower than the bottom surface of the floating plate. The peripheral support frame 4-2 and the floating plate may also be fixedly connected, for example, the peripheral support frame 4-2 is tightly clamped with the floating plate, i.e., the hole wall of the hole of the floating plate is tightly pressed against the outer side wall of the peripheral support frame 4-2.
The method for culturing the microalgae and purifying the water body by adopting the ecological floating bed photobioreactor comprises the steps of placing the ecological floating bed photobioreactor in a water area to be purified, fixing the fixing anchor chain 5 at the bottom of the water, enabling the ecological floating bed photobioreactor to stably float on the water surface, namely not to float along with water flow, inoculating the microalgae on an algae adherence film 8, covering a transparent air-permeable cover 1, ensuring that the lower part of a water-absorbing sponge 7 is immersed in the water, exposing the upper part of the water-absorbing sponge 7 on the water, and culturing the microalgae in the ecological floating bed photobioreactor in a natural state.
The following are examples of the effects of using the photobioreactor of the ecological floating bed shown in fig. 1 to 4 and the foregoing method for culturing microalgae and purifying water: the length and width of the water-absorbing sponge 7 are both 100cm, and the thickness is 15 cm. The length and the width of the inner cover body 1-3 of the transparent and breathable cover 1 are the same as those of the water-absorbing sponge body 2. In the pond with the water depth of 1.5m, the water absorption sponge body 7 is submerged below the water surface to the depth of 10cm, and the part exposed above the water surface is kept in a wet state due to the capillary action. The chlorella is inoculated on the adherent membrane 8 of the chlorella body, and the transparent air-permeable cover 1 is covered, so that the chlorella can be cultured in a natural state. In Shandong region, water temperature is 20 deg.C, and inoculation density of Chlorella is 5 × 104Per m2After 12 days of culture, the density of the chlorella on the adherent membrane 8 of the algal body can reach 1 multiplied by 106Per m2At the moment, the cell density of the chlorella does not increase continuously, and when the culture end point is reached, the chlorella on the algae body adherence film 8 is scraped by a thin flat plate to be harvested, so that the high energy consumption processes such as centrifugation in the traditional algae cell suspension culture mode are omitted, and the culture cost of the chlorella is reduced. At the same time the utility modelThe concentration of ammonia nitrogen in the water body around the reactor is reduced from 5mg/L to 3mg/L, and the concentration of phosphate is reduced from about 1.2mg/L to 0.6mg/L, so that the aim of reducing the content of nitrogen and phosphorus in the water body is fulfilled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an ecological bed photobioreactor that floats which characterized in that: including braced frame, the cavernosum that absorbs water of setting in braced frame and the setting floater all around at braced frame, braced frame's bottom is provided with the hole of permeating water, is provided with the alga on the cavernosum top surface that absorbs water and pastes the wall membrane, and the braced frame top mouth is provided with the transparent ventilative housing of cover in the cavernosum top that absorbs water, and braced frame bottom is connected with fixed anchor chain, works as ecological floating bed photobioreactor place when the aquatic, the cavernosum upper portion that absorbs water exposes on water, the lower part of the cavernosum that absorbs water is soaked in the aquatic.
2. The ecological floating bed photobioreactor as claimed in claim 1, wherein: the transparent breathable cover comprises an inner cover body and an outer cover body, air holes are densely distributed on the side wall of the outer cover body, air holes are densely distributed on the top wall of the inner cover body, and a gap is reserved between the two cover bodies.
3. The ecological floating bed photobioreactor as claimed in claim 2, wherein: the outer layer cover body and the inner layer cover body are connected into a whole through a supporting piece.
4. The ecological floating bed photobioreactor as claimed in claim 2, wherein: the fixed anchor chain is connected with a counterweight.
5. The ecological floating bed photobioreactor according to any one of claims 1 to 4, wherein: the supporting frame body comprises a frame-shaped peripheral supporting frame and a net-shaped bottom supporting frame, the bottom supporting frame is fixedly connected with the bottom of the peripheral supporting frame, a fixed anchor chain is connected with the middle of the bottom surface of the bottom supporting frame, and a water-absorbing sponge body is arranged in frame holes of the peripheral supporting frame and pressed on the bottom supporting frame.
6. The ecological floating bed photobioreactor as claimed in claim 5, wherein: support frame's top all around install the supporting ring board, transparent ventilative housing cover is on the supporting ring board, the floater all around be the kickboard that density is less than the density of water, set up porosely in the middle of the kickboard, support frame inserts in the hole of kickboard all around, support all around and be provided with adjusting device between the kickboard, adjusting device includes the supporting shoe and adjusts the pole, the supporting shoe is fixed on the pore wall of kickboard, adjust the pole and rotate with the supporting shoe and can not reciprocate and be connected, adjust the upper end and the supporting ring board threaded connection of pole, the lower extreme of adjusting the pole is less than the bottom surface of kickboard.
7. The ecological floating bed photobioreactor as claimed in claim 6, wherein: the floating plate is higher than the supporting ring plate.
8. The ecological floating bed photobioreactor as claimed in claim 5, wherein: the peripheral floating body is a floating plate with the density smaller than that of water, a hole is formed in the middle of the floating plate, a peripheral supporting frame is inserted into the hole of the floating plate, and the peripheral supporting frame is tightly clamped with the floating plate.
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| CN201921391661.6U CN210528913U (en) | 2019-08-26 | 2019-08-26 | Ecological floating bed photobioreactor |
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| CN201921391661.6U CN210528913U (en) | 2019-08-26 | 2019-08-26 | Ecological floating bed photobioreactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343605A (en) * | 2019-08-26 | 2019-10-18 | 山东省分析测试中心 | A kind of biological floating bed bioreactor and microdisk electrode and water body purification method |
| CN112250194A (en) * | 2020-10-10 | 2021-01-22 | 中国科学院水生生物研究所 | Method for removing nutritive salt in water in situ and application thereof |
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2019
- 2019-08-26 CN CN201921391661.6U patent/CN210528913U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110343605A (en) * | 2019-08-26 | 2019-10-18 | 山东省分析测试中心 | A kind of biological floating bed bioreactor and microdisk electrode and water body purification method |
| CN112250194A (en) * | 2020-10-10 | 2021-01-22 | 中国科学院水生生物研究所 | Method for removing nutritive salt in water in situ and application thereof |
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